.num{
    font-size: 80px;line-height: 80px;position: relative;display: inline-block;
}
.num::before{
    position: absolute;content: '';right: -10px;top: 0;height: 100%;width: 6px;background-color: #999;display: block;animation: twinkle infinite 1.5s;
}
.text-placeholder.num::before{right: auto;left: 0;}
// .text-line{margin-left:5px;display: inline-block;height: 70px;width: 6px;background-color: #999;}
.text-line{animation: twinkle infinite 1.5s;}
@keyframes twinkle {
    0% {
      opacity: 0;
    }
  
    50% {
      opacity: 1;
    }
  
    100% {
      opacity: 0;
    }
  }